Finding the Fourth Proportional to 388,922.50, 536,713.05 and 219,162.70
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Solution
The fourth proportional to 388,922.50, 536,713.05 and 219,162.70 is: 302,444.53
Step by Step Solution
- Step 1: Write the proportion equation
388,922.50 : 536,713.05 = 219,162.70 : x - Step 2: Convert to fraction form
388,922.50/536,713.05 = 219,162.70/x - Step 3: Cross multiply
388,922.50x = 536,713.05 × 219,162.70 - Step 4: Simplify right side
388,922.50x = 117,627,481,163.24 - Step 5: Solve for x
x = 117,627,481,163.24/388,922.50 - Step 6: Final answer
x = 302,444.53
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.